## Danny_Boy 2 years ago Given that ABCD is a rhombus, what is the value of x?

1. Danny_Boy

A. 19.5 B. 45 C. 30 D. 56 E. 18.6 F. Cannot be determined

2. Danny_Boy

first off do you kno the formula of a rhobus?

4. Danny_Boy

would it be like this x + 4x -3 = 90 :/

5. iforgot

do you know the properties for a rhombus

6. Mertsj

yes. @Danny_Boy

7. Danny_Boy

then combine like terms :/ right

8. Mertsj

yes

9. Danny_Boy

after i combined like terms i divided and got x = 31 :/

10. Mertsj

What is x + 4x?

11. Danny_Boy

i did some thing wrong :/

12. Danny_Boy

5 ooooooppps :/ :[

13. Danny_Boy

so my answer is 30 :/

14. Mertsj

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15. Danny_Boy

right i got that too hehehe

16. Mertsj

Excellent.

17. Danny_Boy

the same thing would apply in this right :/

18. Danny_Boy

19. Danny_Boy

x + x -10 = 90 :/ right

20. Mertsj

Yes. The diagonals of a rhombus are perpendicular.

21. Mertsj

So the other two angles of the triangle must be equal to 90

22. Danny_Boy

right i got 50 :/

23. Mertsj

Very good.

24. Danny_Boy

thank you :)

25. Mertsj

yw

26. Danny_Boy

that aplies to all of that type of problems

27. Mertsj

Yes. If you have a rhombus. If you have a parallelogram that is not a rhomus then...no.

28. Mertsj

*rhombus

29. Danny_Boy

ohh ok thank you :) heheheh i feel proud of my self hahahahahahahah :D

30. Mertsj

And well you should. Good job.

31. Danny_Boy

that was random :P

32. Mertsj

What was random?

33. Danny_Boy

thet i feel proud of my self hahahahah too funny :P

34. Mertsj

Well work hard and there will be more and more instances of that.

35. Danny_Boy

hahah